空间科学实验柜被动式减振系统研究

载人航天二期我国将发展短期有人照料的空间实验室,将开展一系列空间科学实验.国际空间站和我国神舟飞船实际微重力水平测量结果表明,需采取必要的减振措施才能满足特殊科学实验要求,鉴于此对空间科学实验柜被动式减振系统进行了研究和设计.根据空间科学实验柜在载人航天器内的实际安放状态,对其进行了减振布局.将实验柜本身作为刚体,建立6自由度的减振系统动力学模型,然后在ADAMS中建立了空间科学实验柜及减振系统三维实体模型,对减振系统进行仿真,得出系统时域、频域及随机输入下的响应特性.对减振系统参数进行优化,提高了系统的减振效果. 

Study of the Passive Vibration Isolation System for the Space Scientific Experimental Rack

The second phase of the manned space flight project will develop manned space labs for a series of space scientific experiments.Vibration isolation system is indispensable for both Interna- tional Space Station and Shenzhou spaceship to satisfy the requirement of scientific experiments.In this paper,the passive vibration isolation system for the space scientific experimental rack in manned space shuttle has been studied and designed.According to the actual mounting,the vibration isola- tion system layout is designed.As a rigid body,a 6-degree of freedom dynamic model of the scientific experimental rack is developed,a 3D model of experimental rack and vibration isolation system is created in ADAMS,and system performance in time domain and frequency domain are obtained. The system parameters are optimized to improve isolation performance.